CN103289808B - Multi-field joint lubricating oil dehydration and purification device - Google Patents
Multi-field joint lubricating oil dehydration and purification device Download PDFInfo
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- CN103289808B CN103289808B CN201310266190.7A CN201310266190A CN103289808B CN 103289808 B CN103289808 B CN 103289808B CN 201310266190 A CN201310266190 A CN 201310266190A CN 103289808 B CN103289808 B CN 103289808B
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Abstract
The invention discloses a multi-field joint lubricating oil dehydration and purification device. Lubricating oil is sequentially connected with a primary swirler, a strainer, a secondary swirler and a vacuum tank through pipelines, wherein a pulse electrode is arranged in the secondary swirler, a heater is arranged on a pipeline between the secondary swirler and the vacuum tank, the upper part of the vacuum tank is connected with a vacuum pump through a pipeline, a condenser is arranged on the pipeline for connecting the vacuum tank with the vacuum pump, the bottom of the vacuum tank is connected with an oil drain valve and a nitrogen generator and provided with a backflow pipe, and an oil pump is arranged on the backflow pipe and connected with the oil drain valve through an oil outlet pipe. The multi-field joint lubricating oil dehydration and purification device can be used for thoroughly dehydrating the lubricating oil, realizing deep purification and dehydration, and greatly shortening demulsification time so as to quickly finish the lubricating oil purification treatment and reduce the energy consumption of the oil purification. The multi-field joint lubricating oil dehydration and purification device can be used for removing trace moisture in the lubricating oil, and also can be applied to the dehydration and purification treatment of the lubricating oil with high water content, thus being wide in applicable range.
Description
Technical field
The present invention relates to the improvement of lubricating oil dehydration technique, be specifically related to many combined dehydration refining plants of a kind of lubricating oil, belong to lubricant oil dewatered clean technical field.
Background technology
Along with the fast development of global industrial economy, lubricating oil is widely used in the fields such as machinery, electric power, transport and chemical industry, is described as " blood " of modern industry, occupies critical role in the national economic development.Due to the impact of the factors such as steam and cooling system in rainwater, wet environment, lubricating oil is very easily polluted by water in storage, transport, filling and use procedure, forms w/o type emulsion.Water in lubricating oil exists with three kinds of forms, i.e. free water, free-water and emulsified water, and the harm maximum of emulsified water to equipment, the difficulty of removing is also larger.
Common oil in water emulsion physics breaking dehydrating method has settling process, centrifuging, vacuum method, absorption method and the poly-method of knot etc., but exist, efficiency is low, energy consumption is high, equipment maintenance cost high, cannot meet high efficiency and the economy requirement of lubricant oil dewatered clean.In lube purification processing power, the processing accuracy of the precipitator method, centrifuging is not high, and electrostatic method can only be processed the fluid that water content is little, and the treatment capacity of filtration method and desiccating method is very little, and these methods are not all widely used industrial.
On lubricant oil dewatered clean is processed, generally adopting the method for vacuum decompression processing to carry out the separating treatment of oil and water at present, there are two outstanding shortcomings in vacuum oil-filter while processing oil in water emulsion: the one, and energy consumption is high, and the 2nd, efficiency is low; The advantage of vacuum oil-filter is to deviate from the moisture of denier in oil, so effect is better in the time processing transformer oil, the effect of processing turbine oil is often very poor, reason is often seldom (the pending transformer oil water content before treatment of general requirement is less than 50PPM) of moisture pending in transformer oil, and moisture in turbine oil is often more.
Therefore,, in the time that water content of lubricating oil amount is higher, vacuum oil-filter is difficult to meet high efficiency, the economy requirement of lube purification.
Summary of the invention
For prior art above shortcomings, the object of this invention is to provide a kind of dewatering purifying equipment that can be used for high lubricating oil containing water, this dewatering purifying equipment has concurrently efficiently, the feature of economy, deep dehydration.
In order to solve the problems of the technologies described above, the present invention has adopted following technical scheme:
Many combined dehydration refining plants of lubricating oil, comprise one-level swirler, and one-level swirler outlet at bottom is provided with water discharge valve, and the top overflow port of one-level swirler connects strainer by pipeline, and the outlet of strainer connects second cyclone import by pipeline; In second cyclone, be provided with pulsed electrode, pulsed electrode is connected with the pulse power; Second cyclone outlet at bottom is provided with water discharge valve, the top overflow port of second cyclone connects vacuum tank by pipeline, on the pipeline that connects vacuum tank and second cyclone, be provided with well heater, the pipeline that connects second cyclone and vacuum tank stretches in vacuum tank and is provided with spray thrower at that end stretching in vacuum tank; Vacuum tank top connects vacuum pump by pipeline, on the pipeline that connects vacuum tank and vacuum pump, is provided with condenser, and condenser outlet at bottom is provided with water discharge valve, and vacuum tank bottom connects oil drain valve, and vacuum tank bottom connects nitrogen gas generator by breather valve simultaneously.
Further, be provided with return line in vacuum tank bottom, the return line the other end connects in succession the pipeline between strainer and second cyclone and forms confluence; On return line, be provided with oil pump, on the return line in oil pump front, be provided with oil outlet pipe, oil outlet pipe picks out fuel tap by secondary filter; On return line, be provided with selector valve, selector valve is between confluence and oil outlet pipe.
Compared with prior art, the present invention has the following advantages:
1. be coupled eddy flow field, pulsed electric field and heating under vacuum field of the present invention coordinates coarse filtration, essence to filter and dehydration cycle simultaneously, makes lubricating oil dehydration comparatively thorough, realizes deep purifying dehydration.
This device lubricating oil successively by eddy flow dewater, eddy flow added electric field dehydration, three dewatering units of heating under vacuum dehydration, can greatly shorten the breakdown of emulsion time, thereby complete fast lube oil purification processing, reduce lube purification energy consumption.
3, these many combined dehydration refining plants can be removed the minor amount of water in lubricating oil, also can be used for the dewatered clean processing of high lubricating oil containing water, widely applicable.
brief description of the drawings
Fig. 1-structural representation of the present invention.
Embodiment
Combine the purifying treatment that realizes high lubricating oil containing water for many of the present invention's proposition, basic ideas are: associating eddy flow field, pulsed electrical field and true temp field, utilize that pulsed electrical field knot polywater drips, eddy flow field is removed large particle diameter water droplet, the features such as nominal particle size water droplet are removed in true temp field, by rationally integrated, make the dewatered clean of high lubricating oil containing water reach that energy consumption is less, better effects if.
The concrete structure of many combined dehydration refining plants of lubricating oil of the present invention can be simultaneously referring to Fig. 1, it comprises one-level swirler 1, one-level swirler 1 outlet at bottom is provided with water discharge valve 2, the top overflow port of one-level swirler 1 connects strainer 3 by pipeline, and the outlet of strainer 3 connects second cyclone 4 imports by pipeline.In second cyclone 4, be provided with pulsed electrode 5, pulsed electrode 5 is connected with high-voltage pulse power source 6.Second cyclone 4 outlet at bottoms are provided with water discharge valve 2, and the top overflow port of second cyclone 4 connects vacuum tank 7 by pipeline.On the pipeline that connects vacuum tank and second cyclone, be provided with well heater 8, the pipeline that connects second cyclone and vacuum tank stretches in vacuum tank and is provided with spray thrower 9 at that end stretching in vacuum tank, and spray thrower 9 is positioned at vacuum tank 7 middle parts.Vacuum tank 7 tops connect vacuum pump 10 by pipeline, on the pipeline that connects vacuum tank and vacuum pump, are provided with condenser 11, and condenser 11 outlet at bottoms are provided with water discharge valve 2.Vacuum tank 7 bottoms connect oil drain valve 12, and vacuum tank 7 bottoms connect nitrogen gas generator 14 by breather valve 13 simultaneously.
Further, in order to make lubricating oil dehydration more thorough, be provided with return line 15 in vacuum tank 7 bottoms, the return line the other end connects in succession the pipeline between strainer and second cyclone and forms confluence.On return line 15, be provided with oil pump 16, on the return line in oil pump front, be provided with oil outlet pipe, oil outlet pipe picks out fuel tap 18 by secondary filter 17.On return line 15, be provided with selector valve 19, selector valve is between confluence and oil outlet pipe.
Selector valve is the key part that switches inside and outside circulation.Working method is: before device work, and all valve closess, vacuum pump work, in the time that the vacuum tightness in device reaches a certain value, opens fuel charging valve, and oil enters one-level swirler, then to second cyclone, enters vacuum tank after heating.In the time that vacuum tank Height of oil reaches certain value, close fuel charging valve, open oil pump and selector valve, device enters internal recycle operating mode.The effect of internal recycle: originally oil liquid temperature is lower, although flow through well heater, enters vacuum tank, but fluid residence time in well heater is shorter, heat insufficient, oil temperature do not reach dehydration require (oil temperature is 75 degrees Celsius of left and right), this just need to have internal recycle pattern, and under this pattern, fuel charging valve cuts out, outside cold oil can access to plant, inner fluid is under oil pump effect, and the selector valve of flowing through, enters second cyclone, heater via again, the heating of fluid iterative cycles; On the pipeline in well heater front, be provided with oil temperature sensor, oil temperature sensor connects temperature controller, and temperature controller connects well heater.In the time detecting that oil temperature rises to 75 degrees Celsius, open delivery valve, close selector valve, open fuel charging valve, switch to outer circulation.Now, in outside cold oil access to plant, because the influx of cold oil is limited, less on installing interior overall oil temperature impact, and well heater is under the control of temperature controller, can effectively ensure that oil temperature, the level of 75 degrees Celsius, makes device under effective working temperature.The switching of inner-outer circulation of the present invention can be manual, also can automatically complete.If automatically, temperature controller connects with corresponding selector valve, fuel charging valve and delivery valve, to control its switch, realizes and automatically switching.
The effect of delivery valve is the fluid discharger after dewatered clean, is drained in fuel tank, oil tank or oil drum, because fluid is positioned at vacuum tank, need to open oil pump, otherwise oil can not flow out voluntarily when therefore fuel-displaced.The effect of oil drain valve is device is keeped in repair, in cleaning and routine maintenance process, a small amount of excess oil of vacuum tank bottom need to be put only, and in the time of the work of device, oil drain valve is in closing condition.In order to ensure that oil drain valve can put remainder oil, oil drain valve is positioned at vacuum tank lowest part, and the link position of delivery valve on vacuum tank is higher than oil drain valve conventionally.
The effect of secondary filter is solid impurity (metallic particles thing, silt etc.) less in filter oil, because strainer can only be removed the impurity of greater particle size, cannot remove small particle.Secondary filter is invalid to dewatering, and can only filter solid impurity.
In theory, if well heater (or by improvement of other structure) can directly be heated to lubricating oil dehydration requirement without internal recycle, so just can cancel internal recycle, cancel return line and corresponding selector valve, and directly in vacuum tank bottom, secondary filter and delivery valve are set.Certainly, oil drain valve also can play the effect of delivery valve, and secondary filter also can be set as required before oil drain valve front solid impurity less in oil product is filtered fuel-displaced.
Many combined purifying dehydrations of the present invention comprise the links such as the dehydration of one-level eddy flow, secondary eddy flow and pulsed electrical field combination dehydration, heating under vacuum dehydration.Under system suction function, high lubricating oil containing water enters one-level swirler 1 by fuel charging valve 20, by the centrifugal settling of one-level swirler, can slough larger particles emulsion droplet and part solid impurity (as metallic particles, the grains of sand etc.), 3 of strainers can further be removed solid impurity.In second cyclone 4, merge pulsed electrical field, pulsed electrical field applies the voltage of certain frequency and intensity to oil in water emulsion, it is poly-to promote that thereby droplets of emulsified oil generation high vibration forms efficient knot, therefore flow out from one-level swirler under Electro-pulsing Field, tie fusion compared with little emulsion droplet large, therefore under second cyclone 4 effects, can further dewater again.The fluid flowing out from second cyclone, contain a small amount of water yield; only use eddy flow and electric field to be difficult to remove; after now fluid heater via 8 heating, enter vacuum tank 7; and by spray thrower 9 atomizations; W/O part is overflowed from lubricating oil because adding thermosetting water vapor; under the effect of advertising at nitrogen, W/O steam is fully discharged, simultaneously nitrogen protection fluid not oxidized.Water vapor is extracted out by vacuum pump 10 together with nitrogen, and wherein water vapor is condensed into water and drains by water discharge valve 2 after entering condenser 11, and the vacuum state of vacuum tank is got rid of and kept by vacuum pump to nitrogen by vacuum pump.This device is also provided with internal recycle function by return line 15 and oil pump 16, increases the flow through number of times of vacuum tank of fluid, makes fluid reach deep purifying level.
These many combined dehydration refining plants can be removed the minor amount of water in lubricating oil, also can greatly shorten the breakdown of emulsion time, reduce lube purification energy consumption.The lube purification that the present invention can be widely used in in-line purification processing, the Large Hydraulic Equipment of in-line purification processing, oil salvage purifying treatment, the naval vessel I. C. engine oil of aluminum alloy rolling liquefaction is processed and the various fields such as the nonpolar medium processed of petrochemical industry, has good application prospect and good economic worth and social benefit.
The above embodiment of the present invention is to be only explanation example of the present invention, and is not the restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make on the basis of the above description other multi-form variation and variations.Here cannot give exhaustive to all embodiments.Everyly belong to apparent variation or the still row in protection scope of the present invention of variation that technical scheme of the present invention amplifies out.
Claims (1)
1. many combined dehydration refining plants of lubricating oil, it is characterized in that: comprise one-level swirler (1), one-level swirler outlet at bottom is provided with water discharge valve, the top overflow port of one-level swirler (1) connects strainer (3) by pipeline, and the outlet of strainer (3) connects second cyclone (4) import by pipeline; In second cyclone (4), be provided with pulsed electrode (5), pulsed electrode is connected with the pulse power (6); Second cyclone outlet at bottom is provided with water discharge valve, the top overflow port of second cyclone (4) connects vacuum tank (7) by pipeline, on the pipeline that connects vacuum tank and second cyclone, be provided with well heater (8), the pipeline that connects second cyclone and vacuum tank stretches in vacuum tank and is provided with spray thrower (9) at that end stretching in vacuum tank; Vacuum tank top connects vacuum pump (10) by pipeline, on the pipeline that connects vacuum tank and vacuum pump, is provided with condenser (11), and condenser outlet at bottom is provided with water discharge valve; Vacuum tank (7) bottom connects oil drain valve (12), and vacuum tank (7) bottom connects nitrogen gas generator (14) by breather valve simultaneously;
Be provided with return line (15) in vacuum tank (7) bottom, the return line the other end connects in succession the pipeline between strainer and second cyclone and forms confluence; On return line, be provided with oil pump (16), on the return line in oil pump front, be provided with oil outlet pipe, oil outlet pipe picks out fuel tap (18) by secondary filter (17); On return line, be provided with selector valve (19), selector valve is between confluence and oil outlet pipe.
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| CN201310266190.7A CN103289808B (en) | 2013-06-28 | 2013-06-28 | Multi-field joint lubricating oil dehydration and purification device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106167734B (en) * | 2016-07-11 | 2019-05-24 | 包头瑞诺精涂新材料有限公司 | A kind of multifunctional efficient lube oil purification process unit |
| CN107551657A (en) * | 2017-10-18 | 2018-01-09 | 杭州正进能源技术有限公司 | Lubricant purifying regenerator |
| CN110038325B (en) * | 2018-05-25 | 2021-03-09 | 重庆工商大学 | Modularized demulsification dehydration test device and method |
| CN111961524B (en) * | 2020-09-04 | 2022-06-24 | 安徽源光电器有限公司 | Capacitor insulating oil is with dehydration degasification processing system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1624093A (en) * | 2004-11-04 | 2005-06-08 | 田松庆 | Technology of waste oil regenerating and its used apparatus |
| CN101036844A (en) * | 2007-01-31 | 2007-09-19 | 天津钢管集团有限公司 | Lubricant multilevel automatic oil and water separating system and the control method thereof |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1624093A (en) * | 2004-11-04 | 2005-06-08 | 田松庆 | Technology of waste oil regenerating and its used apparatus |
| CN101036844A (en) * | 2007-01-31 | 2007-09-19 | 天津钢管集团有限公司 | Lubricant multilevel automatic oil and water separating system and the control method thereof |
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